public class Controller {
    private int num;
    int a;

    public void study(){
        System.out.println("我一定要学会IDEA");
    }

    public void demo(){
        System.out.println("hj hd,jvkdf vfjk");
        System.out.println("geiwo hf" );
    }

    public static void main(){
        System.out.println("你在做梦，想屁吃呢啊");
        System.out.println("好难啊");
    }


}


